Gabriela Haraf

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• Doctor of Agricultural Sciences
• Teaching and Research staff member at Wroclaw University of Economics and Business

This study aimed to evaluate the possibility of using milk thistle endosperm (MTE) extract with a protein content of >2 g/100 mL to obtain a fermented product, an alternative to milk beverages. Directed lactic fermentation with Lacticaseibacillus rhamnosus was carried out. The course of the process was monitored. The changes in pH, the saturation o...

This research aimed to assess the impact of replacing a partially of post-extraction soybean meal in the diet with varying amounts of distillers yeast (3, 6 and 9%) on the composition and quality in the pectoral muscles of broiler chickens. Findings revealed that cockerels fed with 3% yeast exhibited elevated oleic acid levels and reduced n-6 fatty...

Among the foods frequently consumed by consumers is meat. Among other things, it contains selenium, and the content depends on the amount of consumption of this element by animals, which requires monitoring as a metalloid. The purpose of this study was to: examine the impact of various types of heat processing used by consumers (water bath cooking...

The purpose of the study was to determine the antioxidant activity (AA) and fatty acid (FA) profile of sous-vide beef previously marinated in brine with a 10, 20 and 30% addition of kiwiberry (Actinidia arguta cv. 'Ananasnaya') fruit pulp, as well as changes in the parameters studied after 0, 1, 2 and 3 weeks of refrigerated storage in a vacuum pac...

The purpose of this study was to 1) examine the impact of various types of heat processing used by consumers (water bath cooking WBC, oven convection roasting OCR, grilling G, pan frying PF) on the selenium content and its retention in goose breast meat (with and without skin); 2) Estimation of coverage of this element's daily requirement in adults...

It is well known that many diseases of civilization are diet-dependent. Therefore, it is reasonable to use functional products both in their dietoprophylaxis and dietotherapy. This study aimed to assess the frequency and preference of kefir consumption by adults. An indirect survey method, CAVI (ComputerAssisted Web Interview), was conducted among...

Both in Poland and other developed countries, there is a significant increase in the number of people over 60, which is referred to as the phenomenon of an ageing society. It is recognised that environmental factors, including rational nutrition, physical activity, and genetic, social, and psychological factors, influence life expectancy. During ag...

Simple Summary Probiotics can be used in pigs fattening as a partial or full alternative to antibiotic growth promoters. Their composition and the dosage used in the feed must not impair the nutritional value of the meat raw materials obtained from them. The use of the probiotic preparation Bokashi (containing specific strains of Lactobacillus and...

Milk thistle is a plant that perfectly meets the needs of sustainable agriculture. Despite their high protein content, the seeds and endosperm of S. marianum have not been considered as raw food material so far. Therefore, the work aimed to characterize milk thistle endosperm in terms of its possible use in producing novel food. The nutritional and...

Simple Summary Manganese is a trace element with many critical physiological functions, which should be supplied to animals and humans through diet. Since goose meat is eaten in many countries worldwide, this study aimed to systematically review the content of this element in goose meat and its relation to the recommended intake at the level of ade...

Simple Summary The study concerns the effect of wheat middling’s replacement with 5, 10, and 15% wheat germ expeller, as a feed additive given to broiler chickens, on their meat’s metabolizable energy and nutritional value. The breast and thigh muscles of chickens were analyzed. The additive wheat germ expeller did not affect the muscles’ energy va...

Background: Heat treatment methods including frying (with and without fat or oil), deep frying, oven roasting, grilling, charcoal roasting, broiling, steaming, and microwave cooking promote a cascade of adverse changes in the functional properties of meat, including protein fraction, lipid oxidation, and loss of some vitamins and mineral compounds....

The study aimed to determine the technological and sensory properties of the breast and thigh muscles of geese from the Polish native varieties: Kartuska (Ka) and Suwalska (Su) (from northern Poland) as well as Lubelska (Lu) and Kielecka (Ki) (from southern Poland). The color parameters: L*, a*, b*, ΔE, C, h°, total heme pigments (THP), and share o...

The effect of sous-vide (S-V), microwave cooking (M) and stewing (S) on the fatty acid profile and lipid indices of goose meat was investigated. The research material involved breast muscles (24 with skin and 24 without skin) cut from carcasses of 17-week-old females “Polish oat geese.” Gas chromatography was used to establish the fatty acid profil...

The objective of this study was to investigate the oxidation activity and lipid oxidation changes in breast (BM) and leg (LM) muscles from 17-week old female White Kołuda geese® packaged in a vacuum, and stored in freezing conditions at -20°C. The geese were fed ad libitum during the experimental period (up to 17 weeks) on the same complete feed. T...

Streszczenie: Orzechy jadalne (arachidowy, brazylijski, laskowy, makadamia, migdały, ner-kowca, pekan, piniowy, pistacji, włoski) należą do grupy produktów spożywczych, która po-winna znaleźć się w zrównoważonej i prozdrowotnej diecie człowieka. Owoce te mają wiele walorów prozdrowotnych dzięki swojej wartości odżywczej i zawartości związków biolog...

The purpose of this study was to examine the impact of various types of heat processing used by consumers (water bath cooking WBC, oven convection roasting OCR, grilling G, pan frying PF) on the energy and the nutritional value of goose breast meat (with and without skin). The material used in the study comprised 72 breast muscles cut from carcasse...

The effect of water bath cooking (WBC), oven convection roasting (OCR), grilling (G), pan-frying (PF) on the fatty acid profile and health lipid indices of goose meat was investigated in this study. The experimental material covered 80 breast muscles (40 with skin and subcutaneous fat and 40 without skin) cut from carcasses of 17-week old “Polish o...

The study aimed to evaluate the nutritional value of thigh meat from four Polish geese varieties. Protein, fat, and cholesterol content, as well as amino acid and fatty acid profiles, were established. Based on the percentage of amino acid in protein and fatty acids in meat lipids, the health lipid indices were calculated. The experimental material...

The effect of water bath cooking (WBC), oven convection roasting (OCR), grilling (G), pan frying (PF) on selected physical properties of goose meat was compared in this study. A measurement of cooking loss, texture, color parameters, and sensory evaluation was carried out. The experimental material covered 96 breast muscles cut from carcasses of 17...

The objective of this study was to assess how probiotic bacteria added to diets of 60 hybrid barrows (Landrace-Yorkshire x Duroc) affected the basic chemical composition of meat, the fatty acid profile of intramuscular fat (IMF), m. longissimus lumborum (LL) and lipid quality indices, because IMF cannot be removed before consumption and this inevit...

Wstęp. W tuczu trzody chlewnej, w celu ograniczenia upadków zwierząt i ryzyka osiągania przez nie mniejszych przyrostów masy ciała, np. w wyniku chorób, dopuszczone jest okresowego stosowanie antybiotyków w celu ich zwalczania. Uważa się, że warunki chowu zwierząt, sposób żywienia, a przede wszystkim ich kondycja zdrowotna w istotny sposób wpływają...

The aim of this study was to evaluate the fatty acid profile and health lipid indices of meat from 3 Polish local goose varieties (Romanian-RO, Pomeranian-PO, and Subcarpathian-SB) and the commercial cross White Kołuda goose (W31). Birds were fed ad libitum with the same complete feeds until 17 wk of age. The geese (n = 72) with body weight close t...

Goluch Z., Okruszek A., Haraf G., Moroch R., Rybarczyk A., Wereńska M., Teleszko M. 2020. Fatty acid composition of turkey breast muscle and the salutogenic feeding regimen formulations (a pilot study). Abstract The objective of this study was to conduct a preliminary assessment of the impact of adding salutogenic formulations to turkey feeding die...

Wstęp. Zastosowanie w tuczu zwierząt gospodarskich probiotyków ma na celu nie tylko poprawę ich odporności na choroby, ale i uzyskanie surowców bezpiecznych dla konsumenta i wykazują-cych prozdrowotny wpływ na jego zdrowie. Cel badań. Ocena wpływu suplementacji paszy probiotykiem BioPlus YC na profil kwasów tłusz-czowych lipidów mięśni wieprzków or...

One of the main causes of mental disorders is a disruption in the synthesis and neurotransmission in the central nervous system (CNS). The classic neurotransmitters include ester (acetylcholine), amino acids (glutamic acid, γ-aminobutyric acid) and biogenic amine (serotonin, dopamine, norepinephrine and adrenaline). They are chemical transmitters r...

To source geese for slaughter and commercial sale, domesticated geese (Anser anser domesticus) of various breeds and varieties are used all over the world. Moreover, the meat of wild geese, for instance, Egyptian goose (Alopochen aegyptiacus) or Canada goose (Branta canadensis), is also consumed in some parts of the globe. So far, the research cond...

This research aimed at determining and comparing the fatty acid lipid and amino acid profiles of protein from breast muscles of 17-week-old geese native to northern Poland – Kartuska (KA) and Suwalska (SU) as well as native to southern Poland – Lubelska (LU) and Kielecka (KI). There were 18 birds from each genotype (n = 18). During the experimental...

The objective of the work was to investigate the color and lipid oxidation changes of goose breast meat packaged in vacuum and modified atmosphere (MA) conditions consisting of 80% O2, 20% CO2, and stored in refrigerated conditions at 4°C. Color stability was monitored by determining total heme pigments concentration; relative concentration of myog...

The objective of the research studies was to assess the effect of powdered Japanese green tea, Matcha, Uji type, on oxidative and hydrolytic changes in lipids as well as on parameters and stability of colour, and on sensory evaluation of experimental offal products produced under industrial conditions and cold stored. The products analysed were man...

Atmosphere type and storage time had significant effects on the fatty acid (FA) profile of goose breast muscle lipid. The FA profile did not change during 14 days of storage in muscle packed in vacuum. The percent of saturated FA (SFA) and monounsaturated FA (MUFA) increased gradually during 14 days of storage in samples packed in modified atmosphe...

The objective of the research was to determine and compare the cholesterol content and fatty acid (FA) profile of muscles and abdominal fat of 17 week-old geese of Polish, native breeds. Kartuska (KA, n=18) and Lubelska (LU, n=18) maintained at the Research Station of Waterfowl Genetic Resources in Dworzyska, belonging to the National Research Inst...

The objective of the work was to characterize the color of the of the goose breast meat packaged in protective atmosphere and stored in the refrigerated conditions. The aim was realized by determination of total heme pigment concentration; relative concentration of myoglobin, oxymyoglobin, and metmyoglobin; parameters of color L* (lightness), a* (r...

The aim of the study was to compare the chemical and amino acid composition of breast (pectoralis major) and thigh (biceps femoris) muscles in 17-wk-old geese from 2 Polish conservative flocks: Rypińska (Ry, n = 20) and Garbonosa (Ga, n = 20). The geese were fed ad libitum during the experimental period on the same complete feed. Genotypes affected...

The research objective was to compare duck meat colour and some functional properties of different flocks. Out of seven flocks (Pekin population - type A3, Miniduck K2, Polish Pekin - P33, Pekin originated from Danish - P8, Khaki Campbell - Kh1, the meat type P66 maternal strain, the meat type A55 sire strain) 140 female ducks were used for compari...

The aim of the study was to determine the influence of different genotypes on the meat colour of ducks from conservative and breeding strains. Seventy male duck carcasses from seven flocks (Pekin population - type A3, Miniduck - K2, Polish Pekin - P33, Orpinghton fauve - Ol, synthetic strain - SB, the meat type breeding: P66 - maternal strain, the...

Out of 6 conservative flocks (Khaki Campbell – Kh1, Orpington – O1, Miniducks – K2, Polish Pekin – P33, Pekin originated from Danish – P8 and cross-breeds in Pekin type – SB) 60 female ducks were used for comparison (10 ducks in each group). Birds were slaughtered at 7 week of age. The investigation of breast muscles covers: determination of the co...

The results of this study revealed significant differences in the chemical composition and physicochemical properties of eggs from duck layers of different conservation flocks in a second laying period. The eggs from A1 ducks were characterized by the greatest weight, physical properties of eggshell and the lowest egg white content in egg mass in c...

In four Polish conservative flocks of Suwaiki (Su), Kartuzy (Ka), Kielce (Ki) and Subcarpathian (Sb) geese, registered by FAO as domestic genetic resources the mean values of qualitative traits of breast muscles (pH 15', pH 30', pH 45', pH 24h; colour parameters: L* 15', L* 30', L* 45', L 24h, a* 15', a* 30', a* 45', a* 24h, b* 15', b* 30', b* 45',...

The objective of the study was to compare the chemical composition and fatty acid profile of eggs of two-year-old light type ducks: Orpington (O1) and crossbreed ducks Khaki Campbell x Orpington (KhO) as well as Pekin type ducks - P9, A1 and A2 from conservative flocks, collected at the onset (the 6 th week) of the second laying period. There were...

The objective of the study was to compare the chemical composition of leg muscles of six duck strains. A total of 60 drakes out of four flocks of conservative (Miniduck K2, Polish Pekin P33-native, Pekin population-typeA3, synthetic Polish flock SB) and two breeding strains (A55, P66), aged seven weeks, were used for the study. The content of prote...

A total of 60 drakes out of three flocks of conservative Miniduck (K2), Polish Pekin (P33), native Pekin population type A3 and two breeding strains (A55, P66), aged seven weeks, were used for comparison. The content of protein, lipids, moisture, essential amino acids, fatty acids and cholesterol were estimated. There were differences among flocks...